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Diffstat (limited to 'src/extent_db.h')
| -rw-r--r-- | src/extent_db.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/extent_db.h b/src/extent_db.h new file mode 100644 index 0000000..a9d2c58 --- /dev/null +++ b/src/extent_db.h @@ -0,0 +1,73 @@ +/*************************************************************************** + * Copyright (C) 2011 by Roberto Maar * + * robi@users.berlios.de * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +// The Magic functions for ext4 need a small stack to the cache found extents +// Extent_db.h contains the header for it. + +#ifndef EXTENT_DB_H +#define EXTENT_DB_H + +/* ext3/4 libraries */ +#include <ext2fs/ext2fs.h> + +struct extent_area { + blk_t blocknr; + __u16 depth; + blk_t l_start; + blk_t l_end; + blk_t start_b; + blk_t end_b; + __u16 len; + __u64 size; + __u32 b_count; +}; + + + +struct extent_db_item { + struct extent_db_item *next; + struct extent_area *entry; + struct extent_db_item *last; + +}; + + +struct extent_db_t { + struct extent_db_item *next; + __u32 count; + __u16 max_depth; + ext2fs_block_bitmap d_bmap; + +}; + + + +struct extent_area* new_extent_area(); +//int check_extent_len(struct ext3_extent_header*, struct extent_area* , blk_t ); +static int mark_extent_len(struct extent_db_t*, blk_t, void*); +struct extent_db_t* extent_db_init(ext2fs_block_bitmap); +int extent_db_add (struct extent_db_t* db, struct extent_area*, int); +int extent_db_del(struct extent_db_t* ,blk_t); +void extent_db_clear(struct extent_db_t*); +__u32 extentd_db_find( struct extent_db_t*, __u32, struct extent_area*); + + + + +#endif
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